Excellent OPEN-ARC FCW alloy for the rebuilding and reclamation of heavy parts made of carbon or 14% manganese steels and also for buffer layer prior to hardfacing. Machinable with carbide tipped tools. Some typical applications are railway rails and crossovers, mill shaft drive end, buffer layer on gyratory crusher mantles, repointing of shovel teeth, buffer layer on crawler tractor link prior to overlaying with more abrasion resistance and crack sensitive materials, rebuilding of rollers made of low alloy steels.